A simplified kinetic and mass transfer modelling of the thermal hydrolysis of vegetable oils

Forero-Hernandez, Hector; Jones, Mark Nicholas; Sarup, Bent; Abildskov, Jens; Jensen, Anker Degn; Sin, Gürkan

doi:10.1016/b978-0-444-63965-3.50198-7

Cited by 1 publication

(2 citation statements)

References 5 publications

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“…Patil [5] CSTR Reversible & Pseudo-1st Order None Algebraic Equations Forero-Hernandez [6] Batch None Lascaray, 1949 [7] Review Review Review; 100-220 • C -Lascaray, 1952 [8] Review Review Review; 100-220 • C -Sturzenegger and Sturm [9] Batch Irreversible & Pseudo-1st Order ZnO Jeffreys [10] Spray column Irreversible & Pseudo-1st Order ZnO Algebraic Equations Rifai [11] Spray Column Reversible & 2nd Order? Namdev [12] Review Reversible & Pseudo-1st Order Attarakih [13] Spray column Reversible & Pseudo-1st Order Reduced Population Balance Model…”

Section: First Author Reactor Type Reaction Type and Order Catalyst Amentioning

confidence: 99%

“…Patil et al [5] investigated the hydrolysis reaction in a continuous-stirred tank reactor and proposed a three-step reversible reaction scheme for the hydrolysis of tri-(TG), di-(DG) and monoglycerides (MG) with water (W) to give fatty acids (FA) and glycerol (GLY) where DG and MG act as intermediates: Forero-Hernandez et al [6] show with the experimental data set from Alenezi et al [14] that the identified mass-transfer coefficient and reaction rate constants are highly correlated. The experimental data are based on the non-catalyzed hydrolysis of sunflower oil in a batch autoclave at 300 • C.…”

Section: First Author Reactor Type Reaction Type and Order Catalyst Amentioning

confidence: 99%

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Splitting Triglycerides with a Counter-Current Liquid–Liquid Spray Column: Modeling, Global Sensitivity Analysis, Parameter Estimation and Optimization

et al. 2019

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In this work we present the model of a counter-current spray column in which a triglyceride (tripalmitic triglyceride) is hydrolyzed by water and leads to fatty acid (palmitic acid) and glycerol. A finite volume model (FVM) of the column was developed to describe the reactive extraction process with a two-phase system and validated with an analytical model from the literature with the given data set encompassing six experimental runs. Global, variance-based (Sobol) sensitivity analysis allowed assessment of the sensitivity of the sweet water glycerol content in respect to liquid density, overall mass-transfer coefficient, reaction rate coefficient and the equilibrium ratio to rank them accordingly. Furthermore, parameter estimation with a differential evolution (DE) algorithm was performed to obtain among others the mass transfer, backmixing and reaction rate coefficients. The model was used to formulate and solve a process design problem regarding economic and sustainable performance. Multi-criteria optimization was applied via DE to minimize total annual cost (TAC) and the Eco99 indicator by varying the steam inlet flow rate and distribution over the two steam inlets as the independent variables. The model and analysis was implemented in Fortran and Python where the Fortran model can also be embedded in a process simulator such as PRO/II or Aspen.

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Section: First Author Reactor Type Reaction Type and Order Catalyst Amentioning

confidence: 99%

Section: First Author Reactor Type Reaction Type and Order Catalyst Amentioning

confidence: 99%

Splitting Triglycerides with a Counter-Current Liquid–Liquid Spray Column: Modeling, Global Sensitivity Analysis, Parameter Estimation and Optimization

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

A simplified kinetic and mass transfer modelling of the thermal hydrolysis of vegetable oils

Cited by 1 publication

References 5 publications

Splitting Triglycerides with a Counter-Current Liquid–Liquid Spray Column: Modeling, Global Sensitivity Analysis, Parameter Estimation and Optimization

Splitting Triglycerides with a Counter-Current Liquid–Liquid Spray Column: Modeling, Global Sensitivity Analysis, Parameter Estimation and Optimization

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